How well does this adhere to a leak on a liner bottom with a pool full of water

I used to to wrap around styrofoam dock floats in the lake. The ones I did early in the morning didn’t adhere as well as the ones I did late in the sunny afternoon. They have been in plCE FOR ABOUT 6 months now and doing well.

is it usable for roof ridge already covered with flex seal?

Maybe use a larger piece. I haven’t had it fail on anything I have tried it on yet!

Flex Tape Strong Rubberized Waterproof Tape Black 8 In X

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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69900 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hungary.

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Description

🛠️ Seal it, fix it, flex it — the ultimate tape for pros who never settle.

UNMATCHED COVERAGE - Get 400% more tape per roll for mega repairs without running out.
WATERPROOF POWERHOUSE - Seals leaks instantly—even underwater or on wet surfaces, no drying needed.
FAST RELIABLE REPAIRS - Strong rubberized adhesive stops leaks on roofs, pipes, pools, boats, and more.
UNIVERSAL SURFACE GRIP - Adheres to over 20 materials from metal to fabric—your all-in-one fix-it tape.
BUILT TO BRAVE ELEMENTS - UV resistant and withstands extreme temperatures for long-lasting durability.

Flex Tape Strong Rubberized Waterproof Tape is an industrial-grade, black 8 in x 25 ft roll designed for heavy-duty patching and sealing. Featuring 400% more tape per roll, it bonds instantly on wet or dry surfaces—even underwater. UV resistant and temperature tough, it adheres to a wide range of materials including metal, wood, and fabric, making it the go-to solution for plumbing, roofing, automotive, and outdoor repairs.

Specifications

ASIN	B0916SF5TY
Adhesive Format	Tape
Adhesive Location	back
Adhesive Material	Rubber
Adhesive Side Count	1
Best Sellers Rank	#88,607 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #560 in Duct Tape
Brand Name	Flex Tape
Color	Black
Compatible Material	Pvc, Acrylic, Metal, Steel, Copper, Aluminum, Wood, Ceramic, Porcelain, Tile, Glass, Rubber, Fiberglass, Stucco, Plaster, Stone, Cement, Concrete, Dry Wall, Epdm Roofs, Some Plastics, Fabrics, Vinyl and More.
Customer Reviews	4.3 4.3 out of 5 stars (71)
Included Components	Flex Tape, MAX, Black, 8 in x 25 ft, Pack of 1
Item Highlight	Patch, bond, seal, repair, works underwater, strong adhesive, roof leaks, gutters, pipes, pools, boats, RV, UV resistant
Item Resistance	heat, uv, water
Item Thickness	39 mils
Item Type Name	Flex Tape Black - 8 in x 25 ft
Item Weight	2.7 pounds
Manufacturer	Flex Tape
Material Type	Rubber
Model	TFSMAXBLK08
Number of Items	1
Number of Packs	1
Other Special Features of the Product	Uv-Resistant
Package Size Name	MAX
Part Number	TFSMAXBLK08
Recommended Uses For Product	Plumbing repairs, Sealing out air and water, General home repairs, Fast fixes on your boat, Auto or RV, Roof repairs, Pool repairs, Bath and shower, DIY projects, and so much more!
Size Name	8' x 25' (Pack of 1)
Surface Recommendation	PVC, acrylic, metal, steel, copper, aluminum, wood, ceramic, porcelain, tile, glass, rubber, fiberglass, stucco, plaster, stone, cement, concrete, dry wall, EPDM roofs, some plastics, fabrics, vinyl and more.
UPC	850017897311
Unit Count	25 Feet
Warranty Description	1 Year Limited
Water Resistance Level	Waterproof

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69900 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hungary.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.